BIFF(1) UNIX Programmer's Manual BIFF(1) NAME biff - be notified if mail arrives and who it is from SYNOPSIS biff [ yn ] DESCRIPTION _B_i_f_f informs the system whether you want to be notified when mail arrives during the current terminal session. The com- mand biff y enables notification; the command biff n disables it. When mail notification is enabled, the header and first few lines of the message will be printed on your screen whenever mail arrives. A ``biff y'' command is often included in the file ._l_o_g_i_n or ._p_r_o_f_i_l_e to be executed at each login. _B_i_f_f operates asynchronously. For synchronous notification use the MAIL variable of _s_h(1) or the _m_a_i_l variable of _c_s_h(1). X WINDOW SYSTEM If you are logged in under the X window system, a popup win- dow is used instead of a message to your login window. To delete the window, click any mouse button with the mouse in the window. Properties of the window can be controlled with options for _b_i_f_f in your ._X_d_e_f_a_u_l_t_s file. The following options are recognized: Background To determine the background color. Border To determine the border color. BorderWidth To determine the border width. Default is 2. BodyFont To determine text font. Default is 8x13. Foreground To determine the foreground color. InternalBorder To determine the padding around the text. Default is 2. Printed 12/6/86 4 September 1985 1 BIFF(1) UNIX Programmer's Manual BIFF(1) Mouse To determine the mouse cursor color. Offset To determine the vertical position of the window. Positive is offset from the top of the screen, nega- tive is from the bottom. Default is 2. Window is centered horizontally. ReverseVideo If ``on'', the window should be white on black instead of black on white. Default is off. Timeout In the event you don't click in the window, speci- fies the maximum number of minutes the window should remain on the screen. Value of zero means infinite. Default is zero. Volume Controls the volume of the bell. Default is zero. SEE ALSO csh(1), sh(1), mail(1), X(1), comsat(8C) Printed 12/6/86 4 September 1985 2